Engine-plow.



R. o. GAUGHBY.

ENGINE PLOW.

APPLICATION FILED FEBJ?, 1913.

1,090,133. Patented Mar. 17,1914.

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R. C. CAUGHEY.

ENGINE PLOW.

APPLICATION FILED H1B. 17, 1913.

Patented Mar. 17, 1914.

UNITED STATES PATENT OFFICE.

ROBERT C. CAUGHEY, OF DIXON, ILLINOIS, ASSIGNOR T0 M. RUMELY COMPANY, OFLAPORTE, INDIANA. A CORPORATION OF INDIANA.

ENGINE-PLOW.

Specification of Letters Patent.

f atented Mar. 1 7. 1914.

Application filed February 17, 1913. Serial No. 748,849.

Be it known that I, Romrr (l. Camerini', a citizen oit the UnitedStates, residing at Dixon. in the county ot' Lee and State oit'Illinois, have invented a certain new and useful lmIn-ovement inEngine-Plows. of which the 'following is a specification.

My invention relates to improvements in plows. particularly gang plows,suoli as are adapted to being drawn by some kind ot' a power tractiondevice.

It is illustrated diagrammatically in one t'orm in the accompanyingdrawings, wherein- Figure l is a plan view; Fig. is a side elevationshowing one plow, the remainder being omitted for the sake otcleat-ness; Fig. 3 is a section along the line 51E-3 of Fig. l.

Like parts are indicated by like letters` throughout the severalfigures.

The conventional t'orm ot' triangular trame A mounted upon thesupporting wheels A1 and adapted to be drawn by any suitable tractor notshown, connected there to by means of the chains A2. The rear inclinedmember A3 of the plow 'trame carries projecting rearwardly therefrom thesteps or yokes A4. The rocker plates A arc each p'ivotally Inounted bymeans` of the pivot bolts A on one of the steps At. The slotted lugs A7project rearwardly from either side oit' the rocker plates A5 and havepivoted thereto the plow beams B. The set o't adjusting screws B1 arescrew threaded in the rocker plates A5 and abut against the smoothsurface of the plates A4. The locking or holding pins BL are screwthiteatfled in the steps A* and ride in the curved slotsl l concentricabout A in the rocker plates A, being provided with the washers B" andnuts B5. The ears B slotted at B7 and provided with the forwardlyextending lugs B8 adjacent their `upper extremities project upwardlyfrom the rocker plates A5. The wedges B slotted at Bm ride upon theupper edge ot' the yoke or step A4 and are adapted to be wedged betweenit and the lugs BS. The bolts B11 pass through the slots in the lugs andthe wedges, and are intended to enable the wedges and lugs to be heldlirmly in position after the plow has been adjusted by the movement ofthe wedges.

The plow beam B carries the sleeve C in which is I-slidablyr mounted theshaft C, The rollersI C: C aro located at either extremity oit' thesleeve (l and bear against theshaft (ll to steady it. ["he caster wheelt. is bivotally mounted on the 'forks C at the lower extremity ot' therod The rod C1 has pivoted at the upper extremity thereof the lever C"terminating at one end in the handle member having a lock (li inopposition to the teeth tl ol the quadrant (t) mounted on the upper endot the rod Cl. The link is pivotally mounted on the plow beam l and onthe end of the lever C" to permit raising ot the beam when the lever isrotated.

',lhe plow l) lis rigidly mounted on the standard D which is pivoted atits upper rear extremity on the bolt l)'- in the plow beam ll. TheU-shaped link D passes through the upper t'orward corner ot' the lrame land carriesI at its upper extremity the metal block D" through whichpasses the pin l)5 ot wood or some other yielding material. 'lhc pin lV'projects outwardly from the side ol. the block l and rests on the twoside members ol' the beams. The block D is held upon the U-sluqwd link Dby the nuts D". 'lhe standard D is slotted at D7 to engage the bolt D inthe plow beam to h'old the plow trame against upward rotation.

It will be evident that while l have shown in my drawings an operativedevice. still many changes might be made both in size. shape andarrangement of parts without de parting materially trom the spirit of myinvention. and l wish therefore that my draw ings be regarded as in asense diagramimitic.

The use and operation of my invention are as follows: dien the operatorwishes to adjust the plows on the plow trame. he operates in the-following manner: lfle first loosens both the pivotal bolt, the two selscrews. the 'four holding bolts between the rocker plate and step` andthe two bolts between the wedges and the lugs. This leaves the rockerplate and the plow beam pivoted thereon free to move in any direc tionabout the pivotal point. The two set screws will be manipulated to swingthe plates so as to bring the plow beams into parallelism. The twowedges on each rocker plate interposed between the ears or lugs on theplates and frame will be moved in or out as the case may be to-bodilyrotate the plow beam about its longitudinal axis so as to bring the plowto the proper position. When one wedge is driven, the other will ofcourse be driven out the usual distance in the well-known manner. Afterthese adjustments have been made, the plow will be found in the properposition both as regards parallelism of the plow beams and as regardsangular position of the plows. The four holding or clamping .bolts willthen be tightened up, the pivot bolt will be tightened up, and the twobolts holding the` wet ges and ears or lugs will be tightened, thusholding the rocker plate rigidly and firmly in the desired position onthe plow frame.

In the operation of the plow, it frequently becomes desirable to raiseone of the plow shares off the ground. This of course is done by theoperator, who by depressing the upper end of the lever exerts a downwardpressure on the end of the caster rod and an upward tension on thepivotal link. This causes the plow beam to rotate about its pivotalpoint on the rocker plate as it is raised, and causes it to slide alongthe caster rod, the weight being thus supported by the caster wheel. Theplows can be lowered into the ground by the reverse of this movement,and their depth in ,the ground can be adjusted by locking the lever inposition in the quadrant as indicated, so that the caster wheel whichoperates to raise the plows completely from the ground also operates asa gage to control their depth in the ground during their out. if by anychance the plow should strike an impassable obstruction, it will tend torotate about its pivotal point on the plow beam, and if the obstructionis impassable, the tendency to rotate will be so great that the woodenor other yielding safety pin will be sheared oif and the plow standardwill swing down out of its position in alinement with. the plow beaminto the position indicated in dotted lines in Fig. 2. The plow can thenbe raised by the operator, returned to its proper position and thebroken pin replaced by a new one without any harm being done to the plowitself, the frame, or any other part of the apparatus except the easilyreplaceable pin.

,l claim:

1. ln a gang plow a plow frame, a rocker plate pivoted thereon, a plowbeam pivoted to said plate, said plate free to roch in a horizontalplane and to rotate about an axis in a horizontal plane.

2. In a gang plow a plow frame, a rocker plate pivoted thereon, a plowbeam pivoted to said plate, said plate free to roch in a horizontalplane and to rotate about an axis in a horizontal plane, and means forlocking said plate in position.

The combination with a plow frame of a plate pivotally mounted thereon,a plow beam pivot-ed on said plate and means for rotating said plateabout its pivotal point to adjust the plow beam, said means comprisingadjustable wedges interposed between said plate and said beam.

i4.. The combination with a plow frame of a rocher plate pivotedthereon, said plate being free to rock in a horizontal plane and meansfor rotating said plate about its pivotal point independently of itsrocking movement.

rl`he combination with a plow frame of a rocker plate pivoted thereon,said plate being free to rock in a horizontal plane, means for rotatingsaid plate about its pivotal point independently of its rocking movementand means for positively locking said plate in position.

G. llhe combination with a plow frame of a plate pivotally and looselymounted thereon, the bearing surface of said plate on said plow framebeing curved, a plow lbeam pivoted on said plate, and means for rockingsaid plate to rotate the plow beam about its axis and also to swing theaxis of the plow beam about the pivotal point of the plate.

7. rlhe combination with a plowframe of a plate pivotally and looselymounted thereon, the bearing surface of said plate on said 'plow framebeing curved, a plow beam pivoted on said plate, and means for rockinglsaid plate to rotate the plow beam about its axis and also to swing theaxis of the plow eam about the pivotal point of the plate.l said meanscomprising wedges interposed between said plow beam and said plate andadjustable bolts holding said plow beam and saidaplate together. l

In testimony whereof, I afhx my signature in the presence of twowitnesses this 98th day of January 1913.

ROBERT C. CAUGHEY.

Copiers of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, I). C.

